CVE-2025-66435

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

A

n SSTI (Server-Side Template Injection) vulnerability exists in the get_contract_template method of Frappe ERPNext through 15.89.0. The function renders attacker-controlled Jinja2 templates (contract_terms) using frappe.render_template() with a user-supplied context (doc). Although Frappe uses a custom SandboxedEnvironment, several dangerous globals such as frappe.db.sql are still available in the execution context via get_safe_globals(). An authenticated attacker with access to create or modify a Contract Template can inject arbitrary Jinja expressions into the contract_terms field, resulting in server-side code execution within a restricted but still unsafe context. This vulnerability can be used to leak database information.

References

Link	Resource
https://iamanc.github.io/post/erpnext-ssti-bug-2	Exploit Third Party Advisory
https://www.notion.so/SSTI-bug-2-239e6086eadc80878e8fcc7b6c26a584?source=copy_link	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:frappe:erpnext:*:*:*:*:*:*:*:*

History

23 Dec 2025, 17:56

Type	Values Removed	Values Added
CWE		CWE-94
References	~~() https://iamanc.github.io/post/erpnext-ssti-bug-2 -~~	() https://iamanc.github.io/post/erpnext-ssti-bug-2 - Exploit, Third Party Advisory
References	~~() https://www.notion.so/SSTI-bug-2-239e6086eadc80878e8fcc7b6c26a584?source=copy_link -~~	() https://www.notion.so/SSTI-bug-2-239e6086eadc80878e8fcc7b6c26a584?source=copy_link - Exploit, Third Party Advisory
First Time		Frappe Frappe erpnext
CPE		cpe:2.3:a:frappe:erpnext::::::::

17 Dec 2025, 16:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-12-15 17:15

Updated : 2025-12-23 17:56

NVD link : CVE-2025-66435

Mitre link : CVE-2025-66435

CVE.ORG link : CVE-2025-66435

JSON object : View

Products Affected

erpnext

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

CWE-1336

Improper Neutralization of Special Elements Used in a Template Engine

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